With orders of $25 or more, Amazon offers Prime members the Alex Toys Guy Gear Sporty Cuffs, model no. 1603, for $3.12 with free shipping. (Non-members can spend $49 to bag free shipping.) That's the lowest total price we could find by $16. This set includes four metal sport charms, bands, plastic buckles, different types of threads and cords, plastic needle, and instructions for making four sport themed wrist bands.

Note that this item is part of Amazon's "Add-on program" and can only be purchased with an order of $25 or more.

Update: The price has increased to $3.98.